>>1963950This is the same spot but on High, 400 Lumen mode. This is where it's actually increasing visibility of the road surface and not just the highly reflective stuff. My conclusion has been Med/150 lumens (and probably to around 200-250) you are going to be making yourself seen by cars and pedestrians, but in lit streets you won't be seeing any more than you would without it. At 300+ lumens you will actually start to pierce the ambient. I think is my least used mode, it's either dark enough that medium allows me to see or bright enough that I only need light to be safe, not navigate.